package com.yootk;
import java.util.concurrent.atomic.AtomicStampedReference;
class Book{
    private String title;
    private double price;
    public Book(String title,double price){
        this.title=title;
        this.price=price;
    }
    @Override
    public String toString(){
        return("【图书】名称="+this.title+"、价格="+this.price);
    }
}
public class YootkDemo5 {
    public static void main(String[] args)throws Exception{
        Book book =new Book("Java进阶开发实战",69.8);
        AtomicStampedReference<Book>ref=new AtomicStampedReference<Book>(book,1);
        ref.compareAndSet(book,new Book("Spring开发实战",67.8),1,2);
        System.out.println(ref.getReference());
        System.out.println("当前版本号："+ref.getStamp());
    }
}
